Icon PLC
ICLR- Exchange
- Nasdaq
- Industry
- Services-Commercial Physical & Biological Research
- SEC CIK
- 0001060955
In the last 90 days, Icon PLC insiders filed 0 open-market purchases and 12 sales; 423 institutions reported holding it in 13F filings for Q2 2026, worth $13.9B in total; superinvestors Harris Associates (Oakmark) and Greenhaven Associates hold it.
Holders of 5% or more of ICLR
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Icon PLC, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Artisan Partners Limited Partnership | 13G/A | 10.90%8.36M shares | +1.90 ppfrom 9.00% | May 15, 20253 filings | Mar 6, 2026 | SEC |
| Wellington Management Group LLP | 13G/A | 7.70%5.91M shares | +1.70 ppfrom 6.00% | Feb 3, 20215 filings | May 15, 2026 | SEC |
| FMR LLC | 13G/A | 6.90%5.27M shares | +1.40 ppfrom 5.50% | May 6, 20262 filings | Aug 6, 2026 | SEC |
| Invesco Ltd. | 13G/A | 6.90%5.26M shares | +1.80 ppfrom 5.10% | May 6, 20262 filings | Aug 13, 2026 | SEC |
| Harris Associates L PSuperinvestorHarris Associates (Oakmark) | 13G | 5.70%4.35M shares | New | May 15, 20261 filing | May 15, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
23 Schedule 13D and 13G filings on Icon PLC, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 6, 20262:00 PM ET | Artisan Partners Limited Partnershipand 4 others | 13G/A | 10.90%8.36M shares | +1.90 ppfrom 9.00% | Feb 27, 2026 | SEC |
| Feb 17, 202612:08 PM ET | Orbis Investment Management Ltdand 1 other | 13G/A | 5.50%4.21M shares | +0.20 ppfrom 5.30% | Dec 31, 2025 | SEC |
| Nov 14, 202512:59 PM ET | Orbis Investment Management Ltdand 1 other | 13G | 5.30%4.13M shares | New | Sep 30, 2025 | SEC |
| Nov 12, 20259:33 AM ET | Wellington Management Group LLPand 2 others | 13G | 6.00%4.64M shares | New | Sep 30, 2025 | SEC |
| Aug 12, 20256:03 AM ET | Artisan Partners Limited Partnershipand 4 others | 13G/A | 9.00%7.18M shares | +3.70 ppfrom 5.30% | Jun 30, 2025 | SEC |
| Jul 3, 20257:57 AM ET | WCM Investment Management, LLC | 13G/A | 0.25%199.9K shares | –Below 5% | Jun 30, 2025 | SEC |
| May 15, 20257:12 AM ET | Artisan Partners Limited Partnershipand 3 others | 13G | 5.30%4.29M shares | New | Mar 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Icon PLC shares.
No Form 144 notices for Icon PLC are on file.